Beef and Leek Pasta Bake: A Comforting Spanish Feast

Preheat Oven: Preheat your oven to 180°C (350°F).
Prepare Ingredients: Finely chop the onion and garlic cloves. Thinly slice the leek.
Cook Beef: In a large skillet, heat a little vegetable oil over medium heat. Add the chopped onion and garlic, and cook until softened. Add the ground beef and cook until browned. Pour in the red wine and simmer until reduced by half. Stir in the crushed tomatoes, salt, pepper and sugar. Simmer for about 10 minutes.
Prepare Leek Sauce: In a separate saucepan, melt the butter over medium heat. Add the chopped leek and cook until softened. Add the flour and cook for a few minutes. Gradually add milk, stirring constantly until sauce thickens. Remove from heat and stir in grated Parmesan cheese. Season with salt, pepper and a pinch of nutmeg.
Pasta Cooking: Cook pasta according to package directions until al dente. Drain well.
Gratin Assembly: In a large baking dish, toss cooked pasta with beef and tomato sauce. Pour leek sauce over top and toss gently. Sprinkle grated mozzarella evenly over top.
Baking: Place baking dish in preheated oven and bake for about 20 to 25 minutes, or until cheese is melted and golden brown.
Conclusion:

Voilà, your beef and leek pasta bake is ready to enjoy! With its rich and comforting flavors, this dish will delight your taste buds and warm your hearts. Whether for a family dinner or a meal with friends, this gratin is a delicious and easy to prepare option. Enjoy and treat yourself!